I like something sweet as an add-in too, preferably red grapes, frozen peas, or diced apple, along with the usual scallions and celery. Right now I've got snap peas from the garden which I'll blanch and cut, and I think I'll use chard stems instead of celery.

What do you add to your macaroni salad - just a few things or does the macaroni end up being incidental? What sort of dressing?